Acetonitrile → HCID 59699754, compound

HRID 901479Notes

Reaction equation

[Br:1][C:2]1[CH:3]=[C:4]2[C:10](I)=[CH:9][N:8]([S:12]([C:15]3[CH:20]=[CH:19][C:18]([CH3:21])=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:5]2=[N:6][CH:7]=1.[CH3:22][O:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=1B(O)O.C(#N)C.C([O-])([O-])=O.[Na+].[Na+]>CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Br:1][C:2]1[CH:3]=[C:4]2[C:10]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=3[O:23][CH3:22])=[CH:9][N:8]([S:12]([C:15]3[CH:20]=[CH:19][C:18]([CH3:21])=[CH:17][CH:16]=3)(=[O:14])=[O:13])[C:5]2=[N:6][CH:7]=1

Participants

Conditions

Temperature: 60 °C

Procedure

Into a 500 mL round bottomed flask were added 5-Bromo-3-iodo-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine (11.80 g, 20.96 mmol), 2-methoxyphenyl boronic acid (3.76 g, 24.74 mmol), dichlorobis(triphenylphosphine)palladium(II) (0.756 g, 1.08 mmol), acetonitrile (100 mL) and 100 mL of 2M Na2CO3 (aq). The flask was fitted with a reflux condenser and heated at 60° C. with rapid stirring under N2 for 8 h. The reaction mixture was filtered to obtain a grey-tan precipitate, which was dissolved in EtOAc and washed with water followed by brine. Concentration of this solution afforded 7.70 g (80%) of the title compound as a tan powder. 1H-NMR (500 MHz, d6-DMSO) δ 8.50 (d, J=2.0 Hz, 1H), 8.14 (d, J=2.5 Hz, 1H), 8.07 (s, 1H), 8.03 (d, J=8.0 Hz, 2H), 7.54 (dd, J=1.5, 7.5 Hz, 1H), 7.43 (d, J=8.0 Hz, 2H), 7.39 (m, 1H), 7.15 (d, J=7.5 Hz, 1H), 7.05 (t, J=7.0 Hz, 1H), 3.80 (s. 3H), 2.34 (s, 3H); MS: m/z 456.9/458.9 [MH+].

Workup

customThe flask was fitted with a reflux condenser
filtrationThe reaction mixture was filtered
customto obtain a grey-tan precipitate, which
washwashed with water

Sources & evidence

ORD record: ord-f250dc6811e3476cb14274cf8fdabb56
Source dataset: uspto-grants-2008_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07361764B2

Reaction notes

Loading…